rd /q /s dist
md dist
javac -cp lib\eclipselink.jar;lib\javax.persistence_2.0.3.v201010191057.jar;lib\joda-time-1.6.2.jar;lib\postgresql-9.0-801.jdbc4.jar;. src\kalender\backend\*.java -d dist
md dist\META-INF
copy src\META-INF\persistence.xml dist\META-INF\
jar cvf jpabackend.jar -C dist .